Bisk wheel



Jan. '31,192s. v G. H. FORSYTH DISK- WHEEL Filed May 6, 1922 Patented Jan. 31, 192.8.

'llION', 01? LiFlLNSING', MICHIGAN,

PATENT FUBEY'I'H, OF CHICAGO, ILLINOIW, Aftfill'tdlil'tllit TU llfiitl illl lt "Wl rerun.

consonaa cannons-area or .ullifirllfla tll.

DISK WHEEL.

Application filed May 6,

'lhis application is directed to subjectmatter disclosed in and divided out of my co-pending applicationsSerial No. 396,776 liled July 16, 1920, Serial No. 465,943, filed April 30, 1921, and Serial lie. ll lflllil, filed July 11, 1921.

lhis invention has to do with disk wheels and particularly those equipped with deinountable rims for carrying pneumatic tires, and has for itsprimary object the assembly of the rim, tire and valve stem with the wheel disk in such marine as to provide both for easy access to the valve for inflation oi the tire while on the wheel and for ready removal of the rim and tire from the wheel in a lateral direction without interference between the valve stem and disk; also for the optional use on the one Wheel of tires equipped with either straight or angle valve stems; also the safeguarding of the valve stem from injury by reason or relative movement of the disk and stem in use or from inaccuracy of assembly.

Other objects and advantages of the invention will be apparent to those skilled in the art from the detailed description of cer tain embodiments of the invention illustrated in the accompanying drawing, by way oi exeinplilication only.

In thedrawing- 1 is a radial section through a portion or the periphery of a wheel embodying one form of the invention;

ltig. 2 is a similar section through a second embodiment; and

3 is a similar section through still another embodiment of the invention.

Having particular reference to Fig. 1 of the drawing, the wheel disk is indicated at 11 provided with an annular shoulder, step or head at 12 and rearwardly oil'set at 13 and marginally inclined to the Wheel to form a rear riln retaining stop at M. The section being taken in Fig. 1 at the valve stem the portion 13 of the disk appears as rearwardly deflected at 13" to form a pocket 15 for the protective housing of the stem of the ordinary pneumatic tire 16, as will be treated further hereinafter.

Mounted upon the periphery of the wheel a tire-supporting member represented in Fig. l as attire-carrying rim 1? having along; its rear edge a permanent tire-retaining beat 18 and upon its inner face adjacent the rear edge a portion 19 inclined to the wheel axis lax-Le. serial at.

cured thereto or independent of and bearing a rest the rim as with the usual rim-1e sing ring or clip. This flange extends in tafront of the disk portion 13" and is arranged to have a lateral hearing; thereagainst, the :[lange serving as a means of attachn'ient for the i" o the wheel in a manner equivalent to that he ordinary rim-retaining ring or clip. Forwardly oi the flange 20 the rim is lapped to receive the removable headed the retaining element 21, although the beads trout and rear may be pern'ianently associrated with the l'llll.

'lhe rim is attached to the disk of the wheel by means of bolts 22 the head portions ot which, either directly or by means of washers 23, bear upon the rear face of the d'sk adjacent the bend thereof and, as the bolts are drawn home by means of their nuts 24;, tend to flatten the bend of the disk and thus impart to the latter a nut locking function to prevent the loosening; oi? the nuts 24:. Incidentally the flattening of the angle at the bend of the disk tends to throw the marginal portion i l of the disk outwardly against the portion 19 oi the rim, increasing the reaction between the disk and rim whereby the former is subjected to radial coinpressive stress.

As shown in iull lines in llig. l, the otl'set valve steam 25 is protectively accommodated w thin the pocket 15 between the side walls thereof and has its outer end extending through the slotlike opening between the disk portions lo and 18 through a threaded aperture 26. or the rim-retaining flange 20, its end being closed by the valve cap 2'? which telescopes over the same providing lateral play therebetween and which is threaded into the opening 26, thus giving convenient access to the valve stem from the front of the wheel and permitting the rim, tire and valve stem to be removed laterally from the wheel. The d sk may also be pro vided inwardly of the shoulder 12 with a rearwardly cupped pocket as indicated at 28 the flexible tube 52 allows of give and take between the stem and the disk body.

Moreover, the large opening 61 of Fig. 1 permits oi ready association with the rim o'li a tire provided with a valve stem, avoiding the dillicultles encountered where the H1 diameter more nearly conforms to thatol the opening, and particularly is this true where an angle valve stem is used. This advantage is present in disassembling the tire and rim whether the rim is demountal'ile, or has a removable flange.

I claim:

1. The combination oi. a disk wheel body and a pncumutic-tire-iarryinn; rim mounted thereon, the disk having a forwardly facing pocket. formed therein in line with the valve stem axis, the rim having a rim-retaining element associated therewith and closing off the pocket, the said element provided with an aperture for the passage therethrough of an offset. continuation oi the valve stem,

whereby to afford access to the valve from the face of the wheel.

2. The combination of a disk wheel body and a pneumatic'tire-carryion; rim mounted thereon, the disk l'iaving a forwardly facing pocket formed therein in line with the valve stem axis, the rim having a rim-retaining; clement associated therewith and closing OIT the pocket, the said element provided with a threaded aperture for the passage therethrough of an otlset continuation of the valve stem, and a closure member threaded in the aperture about the valve stem where by to atlord access to the valve from the face of the wheel and to provide an extended support for the outer end of the stem.

The combination of a disk wheel body and a pneumatiotire-carrying rim mounted thereon, the disk having an opening formed therein in line with the valve stem axis and. torwardly thereof, the disk inwardly 0t 7 the opening crossing the median plane of the wheel towards the rear, a rim-retaining clement associated with the disk and rim and closing off the opening, the said rim-retaining element and the disk at the points of intersection ot' the valve stem axis therewith provided with apertures for the passage therethrough of an olii'set and a straight valve stem respectively, whereby to adapt the one wheel to the optional employment therewith of an offset or straight valve stem and to afford access to the stem from the face of the Wheel.

a. The combination of a disk wheel body and a pneumatic-tire-carrying rim mounted thereon, the disk having an opening formed therein in line with the valve stem axis and forwardly thereof, the disk inwardly of the opening crossingthe median plane of the wheel towards the rear, a rinrretaining element associated with the disk and rim and closing off the opening, the said rim-retain ing element and the disk at the points of intersection of the valve stem anis therewith provided with threaded apertures for the passage therethrough of an ottset and a straight valve stem respectively, a threaded cap tor closing the valve and engaging within the used aperture. and a threaded plug to engage within and close the aperture not in use, whereby to adapt the one wheel to the optional employment therewith of an ofi'set or straight valve stem and to atl'ord access to the stem from the face off the wheel.

5. The combination of a disk wheel body and a pneumatic-tire-carrying rim mounted thereon, the disk having two forwardly tacinp; pockets formed therein in line radially with the valve stem axis, the rim having a rim-retaining element associated therewith and closing; oil the outer one of the two pockets, the said element and outer wall of the inner pocket provided with apertures for the passage therethrough of an. onset and a straight valve stem respectively, whereby to adapt the one wheel to the op tional employment tl'ierewith of an offset or straight valve stem to afford access to the stem from the face of the Wheel.

6. The combination of a disk'wheel body and a pneumatic-tires:arrying rim mounted thereon, the disk having two forwardly facing pockets formed therein in line ra dially with the valve stem axis, the rim havinp; a rim-retainingelement associated therewith and closing off the outer one of the two pockets, the said element and outer wall of the inner pocket provided with threaded apertures for the passage therethrough of an offset and straight valve stem respec tively, a threaded cap for closing the valve and engaging within the used aperture, and a threaded plus; to engage within and close the aperture not in use, whereby to adapt the one wheel to the optional employment therewith of an offset or straight valve stem and to allord access to the stem from the face of the wheel.

In testimony whereof I have hereunto signed my name.

GEORGE H. FORSYTH.

GERHMCATE OF CURREGTIQN.

Patent No. i,657,533Q @FfiiiiiB-fl ianneny 231, 1928, to

GJEURGE H FORSWH It is hereby certified that the above numbered patent was erroneousiy issued to "Motor Wheel Corporation, oi Lansing, Michigan, 3 @erhoraiion oi Miehigan", whereas said Letters Patent should have been ieeued in "Steel Wheel fioi'poration of Lansing, Michigan, a Corporation of Michigan", said Corporation being nesignee by mesne nssignments of ihe entire interest in soiei inveniien, as shown by the records oi assignments in ihis office; and that the said Leii'ere hnient should be read with this eorreoiion therein that the same may eonionrn to the record of the case in the Patent Oiiiee.

Signed and seaied this 6th oiny of March, A. i). i928,

(ii Moore, Seal. Acting Comniiseionei? oi Pnients 

